On 7 November 2014 22:30, Bruce Kellett <[email protected]> wrote:
> No, my main problem with identifying the expansion of the universe as the > origin of the arrow of time is that the expansion of the universe really > has essential zero impact on the everyday physics of our experience, but we > see a consistent AoT associated with increasing entropy in every phenomenon > of our everyday experience. Sure, what happened in the early universe has > had lasting consequences for our everyday life, but any connection with the > expansion is too remote to provide a plausible explanation of the > consistency of our experience of time. So the increase of entropy itself -- > whose universality is easily understood -- is itself the origin of the AoT. > So you don't think that the creation of bound states in the BB fireball is a significant contribution to the entropy gradient? I don't think you can cite the "remoteness of the Hubble flow" (as it were) as a reason to discount expansion as a source of the AOT (I assume you think that because bound systems are effectively separated out from it?). All the matter around us was once in the big bang fireball, and if that's where the conditions that created the entropy gradient originated then we would expect there to be a connection, although it may not be an immediately obvious one. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
